A method for the measurement of temperatures and densities in rarefied flow is the Laser Induced Fluorescence (LIF) spectroscopy which is applied to reentry simulation of Hermes, Saenger, and the Shuttle in wind tunnels. The strong nonequilibrium of rotational and vibrational temperature is typical of hypersonic wind tunnels becauseof the rapid expansion in Laval nozzle or free jets. LIF excitation spectra of nitric oxide (NO) were measured in a hot hypersonic free jet expansion in the vacuum wind tunnel at DLR Goettingen in a wide density range (10 up 11 - 10 up 16 molecules/cm3). To interpret the experimental results, a computer program was developed that calculates excitation spectra. By means of LIF measurements in the free flow and...
This LDRD was a Sandia Fellowship that supported Andrea Hsu's PhD research at Texas A&M Universi...
Abstract. A shock wave impingement flow was studied under low temperature, low density conditions in...
Nitric oxide (NO) rotational temperatures have been measured around atick mark shaped body in a hype...
A method for measurement of temperatures and densities in rarefied flow is Laser Induced Fluorescenc...
Laser-Induced Fluorescence (LIF) spectroscopy is applied to supersonic free jet expansions to determ...
LIF excitation spectra of nitric oxide have been measured in a hot supersonic freejet expansion in t...
Laser-Induced Fluorescence spectroscopy is applied in hypersonic rarefied flow fields as method to m...
The rotational temperature of 02near a hot model surface in a hypersonic free jet is investigated by...
The rotational temperature of O 2-molecules in a hypersonic free jet was investigated by means of th...
LIF experiments were performed in the flow field of the high enthalpy facility L2K. This arc heated...
Laser-induced fluorescence (LIF) spectra of NO seeded in He have been measured in a rarefied hyperso...
Laser-induced fluorescence (LIF) spectra of NO seeded in He have been measured in a rarefied hyperso...
With the aim of being able to determine temperatures in high enthalpy flows, NO LIF measurements wer...
The Laser Induced Fluorescence technique (LIF) was used for the determination of vibrational and rot...
In high enthalpy flows with complex non-equilibrium chemistry, like at entry conditions in the Marti...
This LDRD was a Sandia Fellowship that supported Andrea Hsu's PhD research at Texas A&M Universi...
Abstract. A shock wave impingement flow was studied under low temperature, low density conditions in...
Nitric oxide (NO) rotational temperatures have been measured around atick mark shaped body in a hype...
A method for measurement of temperatures and densities in rarefied flow is Laser Induced Fluorescenc...
Laser-Induced Fluorescence (LIF) spectroscopy is applied to supersonic free jet expansions to determ...
LIF excitation spectra of nitric oxide have been measured in a hot supersonic freejet expansion in t...
Laser-Induced Fluorescence spectroscopy is applied in hypersonic rarefied flow fields as method to m...
The rotational temperature of 02near a hot model surface in a hypersonic free jet is investigated by...
The rotational temperature of O 2-molecules in a hypersonic free jet was investigated by means of th...
LIF experiments were performed in the flow field of the high enthalpy facility L2K. This arc heated...
Laser-induced fluorescence (LIF) spectra of NO seeded in He have been measured in a rarefied hyperso...
Laser-induced fluorescence (LIF) spectra of NO seeded in He have been measured in a rarefied hyperso...
With the aim of being able to determine temperatures in high enthalpy flows, NO LIF measurements wer...
The Laser Induced Fluorescence technique (LIF) was used for the determination of vibrational and rot...
In high enthalpy flows with complex non-equilibrium chemistry, like at entry conditions in the Marti...
This LDRD was a Sandia Fellowship that supported Andrea Hsu's PhD research at Texas A&M Universi...
Abstract. A shock wave impingement flow was studied under low temperature, low density conditions in...
Nitric oxide (NO) rotational temperatures have been measured around atick mark shaped body in a hype...