scholarly journals Development of Naphthalene PLIF for Visualizing Ablation Products from a Space Capsule Heat Shield

2014 ◽  
Author(s):  
Chris Combs ◽  
Noel T. Clemens ◽  
Paul M. Danehy
Keyword(s):  
Heat Shield ◽  
Space Capsule

Configuration impact on heat shield requirements for Jupiter entry

1976 ◽  
Author(s):  
W. NICOLET ◽  
A. BALAKRISHNAN ◽  
S. MEZINES
Keyword(s):  
Heat Shield

Biomechanical Sex Differences of Crewmembers During a Simulated Space Capsule Landing

2014 ◽  
Vol 85 (9) ◽  
pp. 925-929 ◽  
Author(s):  
Honglei Ma ◽  
Yu Zhu ◽  
Yanhua Xiao ◽  
Bingkun Liu ◽  
Xin Jin ◽  
...  
Keyword(s):  
Sex Differences ◽  
Space Capsule

Uncertainty Quantification of Thermocouple Air Temperature Measurement in Highly Radiative Environment: Application to Turbofan Engine Compartment

2016 ◽  
Author(s):  
Y. Sommerer ◽  
V. Drouin ◽  
X. Nicolas ◽  
B. Trouette
Keyword(s):  
Heat Flux ◽  
Temperature Measurement ◽  
Air Temperature ◽  
Data Bank ◽  
Heat Shield ◽  
Engine Compartment ◽  
Heat Shields ◽  
Air Speed ◽  
Thermocouple Temperature ◽  
The Impact

This paper focuses on thermocouple air temperature measurement uncertainty due to the radiative fluxes present in the engine compartment where engine case skin temperature can exceed 900 K. To really measure air temperature, the convective heat flux in the thermocouple bead must be predominant. This is why heat shields are used in order to reduce the radiative heat flux on the bead. However, in engine compartment, the heat shield orientation must be optimized since numerous hot walls surround the thermocouple. In order to evaluate the impact of badly oriented heat shields and to provide a data bank for numerical simulation validations, a heated wind tunnel has been used. It has been shown that the uncertainty on the thermocouple temperature can reach dozens of degrees depending on the air speed and the heat shield orientation. Furthermore a specific 3D thermocouple model has been build and validated by comparison with the lab measurements. Then this thermocouple 3D model has been integrated in the whole engine compartment aero-thermal model in order to quantify the uncertainty of the thermocouple air temperature measurement in the real engine environment.

scholarly journals The makeup of a gamete space capsule

Nature Plants ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 8-8
Author(s):  
Paula Guzmán-Delgado ◽  
Maciej A. Zwieniecki
Keyword(s):  
Space Capsule
Sign in / Sign up

Export Citation Format

Share Document