Effective calculation of multiphase flow fields in liquid rocket thrust chambers

2001 ◽  
Author(s):  
Dag Wennerberg ◽  
Oliver Knab
Keyword(s):  
Multiphase Flow ◽  
Flow Fields ◽  
Rocket Thrust ◽  
Liquid Rocket

Film cooling modeling in liquid rocket thrust chambers

2021 ◽  
Author(s):  
Pierluigi Concio ◽  
Simone D'Alessandro ◽  
Mario Tindaro Migliorino ◽  
Francesco Nasuti
Keyword(s):  
Film Cooling ◽  
Rocket Thrust ◽  
Liquid Rocket

scholarly journals Vibrational turbine piezoelectric nanogenerators for energy harvesting in multiphase flow fields

2021 ◽  
Vol 7 ◽  
pp. 6384-6393
Author(s):  
King-James Idala Egbe ◽  
Ali Matin Nazar ◽  
Pengcheng Jiao ◽  
Yang Yang ◽  
Xinghong Ye ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Multiphase Flow ◽  
Flow Fields ◽  
Piezoelectric Nanogenerators

Numerical Investigation on Radiative Heat Loads in Liquid Rocket Thrust Chambers

2019 ◽  
Vol 35 (5) ◽  
pp. 930-943 ◽  
Author(s):  
Giuseppe Leccese ◽  
Daniele Bianchi ◽  
Francesco Nasuti
Keyword(s):  
Numerical Investigation ◽  
Radiative Heat ◽  
Rocket Thrust ◽  
Liquid Rocket ◽  
Heat Loads

A numerical model for coupling between atomization and spray dynamics in liquid rocket thrust chambers

1992 ◽  
Author(s):  
M. GIRIDHARAN ◽  
J. LEE ◽  
A. KRISHNAN ◽  
A. PRZEKWAS ◽  
KLAUS GROSS
Keyword(s):  
Numerical Model ◽  
Rocket Thrust ◽  
Liquid Rocket

Analysis of the Flow Characteristics of Multiphase Flow Fields in the Mixing Agitator

2014 ◽  
Vol 580-583 ◽  
pp. 3167-3170
Author(s):  
Xiao Bing Wang
Keyword(s):  
Multiphase Flow ◽  
Flow Characteristics ◽  
Flow Fields ◽  
Agitation Rate ◽  
Fluid Shear ◽  
Eddy Simulation ◽  
Spiral Vortex ◽  
Large Eddy ◽  
Circular Flows ◽  
Solid Liquid

The numerical simulation for the flow characteristics of multiphase flow fields in the multiple-blade mixing agitator is carried out by means of combining of the large eddy simulation (LES) and multiphase flow model. Then the flow pattern changes and material mixing rule at different speed conditions are analyzed. The result shows that complicated circular flows form among the four groups of blades in the axial cross section. In the mixing process, the upper solid-liquid mixture is transported to the bottom of the agitator under the action of gravity and fluid shear. Finally it mainly distributes at the agitator walls and the inverted cone manifold in the center of the agitating shaft. With the gradually increasing in the agitation rate, there are a large amount of vortex structures near the blade. Then spiral vortex distribution areas are formed.

scholarly journals Consequences of modeling demands on numerical rocket thrust chamber flow simulation tools

2019 ◽  
Author(s):  
O. Knab ◽  
H. Riedmann ◽  
B. Ivancic ◽  
C. Höglauer ◽  
M. Frey ◽  
...  
Keyword(s):  
Flow Simulation ◽  
Time Frame ◽  
Computational Effort ◽  
Full Scale ◽  
Test Cases ◽  
Thrust Chamber ◽  
Simulation Tools ◽  
Rocket Thrust ◽  
Liquid Rocket ◽  
Model Features

Numerical simulation of liquid rocket thrust chamber flows is a challenging task which requires a comprehensive tool validation strategy encompassing laboratory- to full-scale test cases. While the former are widely used as the first step to verify advanced numerical schemes and thermochemical models, the latter can often no more be simulated in a reasonable time frame due to the extreme computational effort necessitated by the enlarged dimensions and configurational changes. Conclusions drawn from tools with such limitations are only of little help for a thrust chamber designer and, hence, ill-posed to adequately tackle the simulation challenges of such a device. This paper discusses the modeling demands for numerical thrust chamber flow simulation tools and outlines the indispensable validation approach from laboratory- via subto full-scale configurations using consistent model features throughout the test cases. Consequences of this obligation are exposed to drive the tool setup. Exemplarily, the Airbus DS thrust chamber flow simulation philosophy is presented.

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