Evgeni Fedorovich | University of Oklahoma (original) (raw)

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Papers by Evgeni Fedorovich

Research paper thumbnail of Oscillations in Prandtl slope flow started from rest

Quarterly Journal of the Royal Meteorological Society, Dec 27, 2016

Research paper thumbnail of On the Evaluation of the Proportionality Coefficient between the Turbulence Temperature Spectrum and Structure Parameter

Journal of the Atmospheric Sciences, Jul 22, 2020

Research paper thumbnail of Similarity concept for dispersion of car exhaust gases in street canyons tested against wind-tunnel and numerical model data

HAL (Le Centre pour la Communication Scientifique Directe), 1999

Research paper thumbnail of Impact of Aerosol Shortwave Radiative Heating on Entrainment in the Atmospheric Boundary Layer

98th American Meteorological Society Annual Meeting, Jan 10, 2018

Research paper thumbnail of Idealized numerical simulations of nocturnal low-level jets developing over gently sloping terrain

32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (20 – 24 June, 2016), Jun 20, 2016

Research paper thumbnail of Analytical and Numerical Study of Natural Convection in a Stably Stratified Fluid Along Vertical Plates and Cylinders with Temporally-Periodic Surface Temperature Variations

Research paper thumbnail of Atmospheric Turbulence and Mesoscale Meteorology: Scientific Research Inspired by Doug Lilly

Research paper thumbnail of Experimental study of mean flow and turbulence characteristics in an urban roughness sublayer

Research paper thumbnail of Turbulence scale interactions in convective boundary-layer flows reproduced with compressible and incompressible large eddy simulation codes

Research paper thumbnail of Buoyant Convection in Geophysical Flows

Buoyant Convection in Geophysical Flows, 1998

Research paper thumbnail of Oscillatory flow regimes in turbulent katabatic flows retrieved from direct numerical simulations

17th Symposium on Boundary Layers and Turbulence, May 25, 2006

Persistent katabatic winds, which in basic terms can be described as buoyantly driven, turbulent ... more Persistent katabatic winds, which in basic terms can be described as buoyantly driven, turbulent boundary layer flows along cooled sloping surfaces in a stratified environment, are typical for vast areas of the earth and play an important role in the local and regional climate. Even in their most idealized or elemental forms, these flows conflate two notoriously difficult aspects of atmospheric dynamics: turbulence and natural convection. Although much progress has been made in the conceptual understanding and numerical simulation of ...

Research paper thumbnail of Boundary-layer similarity in a numerically simulated oscillatory turbulent katabatic flow

EGU General Assembly Conference Abstracts, May 1, 2014

Research paper thumbnail of Celebrating the Career of Dr. John R. Garratt: Long-Term Proponent of Boundary-Layer Meteorology and International Man of Mystery

Boundary-Layer Meteorology

Research paper thumbnail of 305 Analytical and Numerical Study of Natural Convection in a Stably Stratified Fluid Along Vertical Plates and Cylinders with Temporally-Periodic Surface Temperature Variations

This paper describes one-dimensional (parallel) laminar and transitional regimes of natural conve... more This paper describes one-dimensional (parallel) laminar and transitional regimes of natural convection in a viscous stably stratified fluid due to temporally-periodic variations in the surface temperature of infinite vertical plates and cylinders. Analytical solutions are obtained for the periodic laminar regime for arbitrary values of stratification, Prandtl number and forcing frequency. The solutions for plates and cylinders are qualitatively similar and show that (i) the flows are composed of two waves that decay exponentially with distance from the surface; a fast long wave and a slow short wave, (ii) for forcing frequencies less than the natural frequency, both waves propagate away from the surface, while (iii) for forcing frequencies less than this natural frequency, the short wave propagates away from the surface while the long wave propagates toward the surface. The analytical results are complemented, for the plate problem, with three-dimensional numerical simulations of fl...

Research paper thumbnail of DOI 10.1007/s10546-011-9596-2 BOOK REVIEW

This book has been awaited in the atmospheric boundary-layer research community for a long time. ... more This book has been awaited in the atmospheric boundary-layer research community for a long time. John Wyngaard, the author of the book, is by all counts an outstanding figure in the area of atmospheric turbulence studies. His contributions to the field are both numerous and exceptional. As a person, John comprises all the principal qualities of an outstanding scien-tist and academic: curiosity, witty mind, breadth of thinking, depth of understanding, healthy scepticism (also with respect to his own results), and readiness to share his knowledge with colleagues and students. I happened to come across John Wyngaard’s name at the beginning of the 1980s, while I was working on my Ph.D. dissertation in atmospheric boundary-layer modelling. His brilliant scientific articles profoundly shaped my interest in the quantitative aspects of boundary-layer meteorology. Apparently, they played the same role in the scien-tific careers of many other atmospheric boundary-layer researchers worldwide. ...

Research paper thumbnail of Environ Fluid Mech (2010) 10:387–414 DOI 10.1007/s10652-009-9158-z ORIGINAL ARTICLE

Analytical solution for katabatic flow induced by an isolated cold strip

Research paper thumbnail of 7 . 2 Dispersion in Atmospheric Convective Boundary Layer with Wind Shears : From Laboratory Models to Complex Simulation Studies

Convective boundary layers (CBLs) driven by buoyancy forcings from the bottom or/and from the top... more Convective boundary layers (CBLs) driven by buoyancy forcings from the bottom or/and from the top and capped by temperature (density) inversions are commonly observed in the lower portion of earth’s atmosphere (Holtslag and Duynkerke 1998). During fairweather daytime conditions, the buoyancy forcing in the boundary layer is primarily represented by convective heat transfer from a warm underlying surface. Such buoyancy forcing generates upand downward motions that effectively mix momentum and scalar fields inside the CBL. Due to active mixing, the wind velocity, potential temperature (buoyancy), and concentrations of atmospheric constituents in the main portion of the CBL (often referred to as convectively mixed layer) do not change considerably with height when averaged over horizontal planes or over time. A typical CBL can be subdivided into three separate layers: the surface layer, in which the meteorological variables change fairly rapidly with height; the mixed layer, where mean...

Research paper thumbnail of Preface to the special issue: Boundary layer flows along sloping surfaces

Research paper thumbnail of A Baroclinic Nocturnal Low-Level Jet over the Great Plains

Research paper thumbnail of Analytical and Numerical Studies of Natural Convection Along Doubly Infinite Vertical Plates in Stratified Fluids

Results are presented from a series of analytical and numerical studies of buoyantly driven flows... more Results are presented from a series of analytical and numerical studies of buoyantly driven flows along heated vertical surfaces immersed in stably stratified fluids. Flows of the studied type are broadly represented in engineering and geophysical applications. First, the classical problem of one-dimensional natural convection flow along a heated wall is revisited for the case of a stably stratified ambient fluid. The study then focuses on laminar natural convection in a viscous stably stratified fluid resulting from temporally periodic variations in the wall surface temperature. Finally, scaling relationships are proposed for the turbulent convection flow along a heated wall and verified based on results of direct numerical simulations.

Research paper thumbnail of Oscillations in Prandtl slope flow started from rest

Quarterly Journal of the Royal Meteorological Society, Dec 27, 2016

Research paper thumbnail of On the Evaluation of the Proportionality Coefficient between the Turbulence Temperature Spectrum and Structure Parameter

Journal of the Atmospheric Sciences, Jul 22, 2020

Research paper thumbnail of Similarity concept for dispersion of car exhaust gases in street canyons tested against wind-tunnel and numerical model data

HAL (Le Centre pour la Communication Scientifique Directe), 1999

Research paper thumbnail of Impact of Aerosol Shortwave Radiative Heating on Entrainment in the Atmospheric Boundary Layer

98th American Meteorological Society Annual Meeting, Jan 10, 2018

Research paper thumbnail of Idealized numerical simulations of nocturnal low-level jets developing over gently sloping terrain

32nd Conf. on Agricultural and Forest Meteorology/22nd Symp. Boundary Layers and Turbulence/ Third Conf. on Atmospheric Biogeosciences (20 – 24 June, 2016), Jun 20, 2016

Research paper thumbnail of Analytical and Numerical Study of Natural Convection in a Stably Stratified Fluid Along Vertical Plates and Cylinders with Temporally-Periodic Surface Temperature Variations

Research paper thumbnail of Atmospheric Turbulence and Mesoscale Meteorology: Scientific Research Inspired by Doug Lilly

Research paper thumbnail of Experimental study of mean flow and turbulence characteristics in an urban roughness sublayer

Research paper thumbnail of Turbulence scale interactions in convective boundary-layer flows reproduced with compressible and incompressible large eddy simulation codes

Research paper thumbnail of Buoyant Convection in Geophysical Flows

Buoyant Convection in Geophysical Flows, 1998

Research paper thumbnail of Oscillatory flow regimes in turbulent katabatic flows retrieved from direct numerical simulations

17th Symposium on Boundary Layers and Turbulence, May 25, 2006

Persistent katabatic winds, which in basic terms can be described as buoyantly driven, turbulent ... more Persistent katabatic winds, which in basic terms can be described as buoyantly driven, turbulent boundary layer flows along cooled sloping surfaces in a stratified environment, are typical for vast areas of the earth and play an important role in the local and regional climate. Even in their most idealized or elemental forms, these flows conflate two notoriously difficult aspects of atmospheric dynamics: turbulence and natural convection. Although much progress has been made in the conceptual understanding and numerical simulation of ...

Research paper thumbnail of Boundary-layer similarity in a numerically simulated oscillatory turbulent katabatic flow

EGU General Assembly Conference Abstracts, May 1, 2014

Research paper thumbnail of Celebrating the Career of Dr. John R. Garratt: Long-Term Proponent of Boundary-Layer Meteorology and International Man of Mystery

Boundary-Layer Meteorology

Research paper thumbnail of 305 Analytical and Numerical Study of Natural Convection in a Stably Stratified Fluid Along Vertical Plates and Cylinders with Temporally-Periodic Surface Temperature Variations

This paper describes one-dimensional (parallel) laminar and transitional regimes of natural conve... more This paper describes one-dimensional (parallel) laminar and transitional regimes of natural convection in a viscous stably stratified fluid due to temporally-periodic variations in the surface temperature of infinite vertical plates and cylinders. Analytical solutions are obtained for the periodic laminar regime for arbitrary values of stratification, Prandtl number and forcing frequency. The solutions for plates and cylinders are qualitatively similar and show that (i) the flows are composed of two waves that decay exponentially with distance from the surface; a fast long wave and a slow short wave, (ii) for forcing frequencies less than the natural frequency, both waves propagate away from the surface, while (iii) for forcing frequencies less than this natural frequency, the short wave propagates away from the surface while the long wave propagates toward the surface. The analytical results are complemented, for the plate problem, with three-dimensional numerical simulations of fl...

Research paper thumbnail of DOI 10.1007/s10546-011-9596-2 BOOK REVIEW

This book has been awaited in the atmospheric boundary-layer research community for a long time. ... more This book has been awaited in the atmospheric boundary-layer research community for a long time. John Wyngaard, the author of the book, is by all counts an outstanding figure in the area of atmospheric turbulence studies. His contributions to the field are both numerous and exceptional. As a person, John comprises all the principal qualities of an outstanding scien-tist and academic: curiosity, witty mind, breadth of thinking, depth of understanding, healthy scepticism (also with respect to his own results), and readiness to share his knowledge with colleagues and students. I happened to come across John Wyngaard’s name at the beginning of the 1980s, while I was working on my Ph.D. dissertation in atmospheric boundary-layer modelling. His brilliant scientific articles profoundly shaped my interest in the quantitative aspects of boundary-layer meteorology. Apparently, they played the same role in the scien-tific careers of many other atmospheric boundary-layer researchers worldwide. ...

Research paper thumbnail of Environ Fluid Mech (2010) 10:387–414 DOI 10.1007/s10652-009-9158-z ORIGINAL ARTICLE

Analytical solution for katabatic flow induced by an isolated cold strip

Research paper thumbnail of 7 . 2 Dispersion in Atmospheric Convective Boundary Layer with Wind Shears : From Laboratory Models to Complex Simulation Studies

Convective boundary layers (CBLs) driven by buoyancy forcings from the bottom or/and from the top... more Convective boundary layers (CBLs) driven by buoyancy forcings from the bottom or/and from the top and capped by temperature (density) inversions are commonly observed in the lower portion of earth’s atmosphere (Holtslag and Duynkerke 1998). During fairweather daytime conditions, the buoyancy forcing in the boundary layer is primarily represented by convective heat transfer from a warm underlying surface. Such buoyancy forcing generates upand downward motions that effectively mix momentum and scalar fields inside the CBL. Due to active mixing, the wind velocity, potential temperature (buoyancy), and concentrations of atmospheric constituents in the main portion of the CBL (often referred to as convectively mixed layer) do not change considerably with height when averaged over horizontal planes or over time. A typical CBL can be subdivided into three separate layers: the surface layer, in which the meteorological variables change fairly rapidly with height; the mixed layer, where mean...

Research paper thumbnail of Preface to the special issue: Boundary layer flows along sloping surfaces

Research paper thumbnail of A Baroclinic Nocturnal Low-Level Jet over the Great Plains

Research paper thumbnail of Analytical and Numerical Studies of Natural Convection Along Doubly Infinite Vertical Plates in Stratified Fluids

Results are presented from a series of analytical and numerical studies of buoyantly driven flows... more Results are presented from a series of analytical and numerical studies of buoyantly driven flows along heated vertical surfaces immersed in stably stratified fluids. Flows of the studied type are broadly represented in engineering and geophysical applications. First, the classical problem of one-dimensional natural convection flow along a heated wall is revisited for the case of a stably stratified ambient fluid. The study then focuses on laminar natural convection in a viscous stably stratified fluid resulting from temporally periodic variations in the wall surface temperature. Finally, scaling relationships are proposed for the turbulent convection flow along a heated wall and verified based on results of direct numerical simulations.