Study of Simulated Fuel Flows in High Aspect Ratio Cooling Channels

A Numerical Model for Supercritical Flow in Rocket Engine Applications

“…The use of a database is necessary since the direct evaluation of the properties in a CFD code is impracticable because the time required to evaluate properties at one flow condition can be much larger that the time required to complete a single time step. 13 However, the discretization of the thermodynamic properties must be performed efficiently and accurately; in fact, in supercritical conditions fluid properties change dramatically even for small density and pressure variations. In the present study the Van Der Waals equation of state has been used to evaluate the fluid properties database:…”

Influence of curvature in regenerative cooling system of rocket engine

“…Moreover, highly asymmetrical heating imposes a thermal strati¦cation along the channel, clearly demonstrated by experimental and numerical investigations [2,3]. The presence of the Dean secondary vortices in heated channel perturbs the thermal strati¦cation, increases mixing and enhances heat transfer at the concave side.…”

“…Numerical simulations have been performed, with di¨erent methods of calculation and for di¨erent test con¦guration (real cooling channels of rocket engine [3,10], straight channels [11], referent test case [12]). These numerical references are part of a project at DLR Lampoldshausen: the EH3C project (Electrical Heated Curved Cooling Channels).…”

Endothermic catalytic cracking of liquid hydrocarbons for thermal management of high-speed flight vehicles

“…97 Experimental and computational analysis were used to quantitatively show that high-aspect ratio cooling channels design for heat exchange systems as they reduce thermal strain in the wall material and increase the material strength by substantially reducing its maximum temperature. 98…”