Robert Bakos | Cornell University (original) (raw)

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Papers by Robert Bakos

Research paper thumbnail of Chemical recombination in an expansion tube

AIAA Journal, 1994

An approximate analytical solution for the Lagrangian pressure-time history is presented for an i... more An approximate analytical solution for the Lagrangian pressure-time history is presented for an ideal gas. A one-dimensional numerical solution with equilibrium chemistry for the diaphragm-inertia model was also done and shows good agreement with both the approximate analytical solution and a pressure measurement for air test gas from the NASA Langely HYPULSE expansion tube. The extent of recombination is then calculated using a finite rate chemistry package for the analytically or numerically determined pressure-time history.

Research paper thumbnail of Recent advances in detonation techniques for high-enthalpy facilities

36th AIAA Aerospace Sciences Meeting and Exhibit, 1998

Research paper thumbnail of Hypervelocity real gas capabilities of GASL's expansion tube (HYPULSE) facility

16th Aerodynamic Ground Testing Conference, 1990

Research paper thumbnail of Recent advances in detonation techniques for high-enthalpy facilities

AIAA Journal, 2000

Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock t... more Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock tube. Recently, detonation driven facilities have been implemented for meaningful hypervelocity testing. These facilities can be operated with the detonation wave propagating either downstream or upstream. The advantages and problems associated with these methods are discussed. In addition to a performance comparison between these two modes, comparisons with other high-performance techniques, such as free piston and gun tunnels, are also made. At present, detonation driven facilities are generally of lower performance than free piston tunnels. However, they appear easier to operate and have a lower capital investment.

Research paper thumbnail of Recent Advances in Detonation Techniques for High-Enthalpy Facilities

AIAA Journal, 2000

Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock t... more Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock tube. Recently, detonation driven facilities have been implemented for meaningful hypervelocity testing. These facilities can be operated with the detonation wave propagating either downstream or upstream. The advantages and problems associated with these methods are discussed. In addition to a performance comparison between these two modes, comparisons with other high-performance techniques, such as free piston and gun tunnels, are also made. At present, detonation driven facilities are generally of lower performance than free piston tunnels. However, they appear easier to operate and have a lower capital investment.

Research paper thumbnail of Chemical recombination in an expansion tube

AIAA Journal, 1994

An approximate analytical solution for the Lagrangian pressure-time history is presented for an i... more An approximate analytical solution for the Lagrangian pressure-time history is presented for an ideal gas. A one-dimensional numerical solution with equilibrium chemistry for the diaphragm-inertia model was also done and shows good agreement with both the approximate analytical solution and a pressure measurement for air test gas from the NASA Langely HYPULSE expansion tube. The extent of recombination is then calculated using a finite rate chemistry package for the analytically or numerically determined pressure-time history.

Research paper thumbnail of Recent advances in detonation techniques for high-enthalpy facilities

36th AIAA Aerospace Sciences Meeting and Exhibit, 1998

Research paper thumbnail of Hypervelocity real gas capabilities of GASL's expansion tube (HYPULSE) facility

16th Aerodynamic Ground Testing Conference, 1990

Research paper thumbnail of Recent advances in detonation techniques for high-enthalpy facilities

AIAA Journal, 2000

Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock t... more Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock tube. Recently, detonation driven facilities have been implemented for meaningful hypervelocity testing. These facilities can be operated with the detonation wave propagating either downstream or upstream. The advantages and problems associated with these methods are discussed. In addition to a performance comparison between these two modes, comparisons with other high-performance techniques, such as free piston and gun tunnels, are also made. At present, detonation driven facilities are generally of lower performance than free piston tunnels. However, they appear easier to operate and have a lower capital investment.

Research paper thumbnail of Recent Advances in Detonation Techniques for High-Enthalpy Facilities

AIAA Journal, 2000

Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock t... more Detonations can be used to generate a high-pressure gas of high acoustic speed to drive a shock tube. Recently, detonation driven facilities have been implemented for meaningful hypervelocity testing. These facilities can be operated with the detonation wave propagating either downstream or upstream. The advantages and problems associated with these methods are discussed. In addition to a performance comparison between these two modes, comparisons with other high-performance techniques, such as free piston and gun tunnels, are also made. At present, detonation driven facilities are generally of lower performance than free piston tunnels. However, they appear easier to operate and have a lower capital investment.

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