Concept
Liquid-propellant rocket
Related publications (46)
Foil-Level Inkjet-Printed pyroMEMS Balloon Actuators: Fabrication, Modeling, and Validation
Nico de Rooij, Danick Briand, Francisco Molina Lopez, David de Koninck
A cleanroom-free fabrication process adapted to microfluidic devices is presented for pyrotechnical microelectromechanical systems balloon actuators. The actuators are intended for on-chip pumping and fluid ejection to replace tabletop pumping solutions in ...
Institute of Electrical and Electronics Engineers2014Model Reduction Opportunities in Detailed Simulations of Combustion Dynamics
Rocket and gas turbine combustion dynamics involves a confluence of diverse physics and interaction across a number of system components. Any comprehensive, self-consistent numerical model is burdened by a very large computational mesh, stiff unsteady proc ...
American Institute of Aeronautics and Astronautics2014Prediction of Hot Tear Formation in Vertical DC Casting of Aluminum Billets Using a Granular Approach
Michel Rappaz, Jean-Marie Drezet, André Phillion, Meisam Sistaninia
A coupled hydromechanical granular model aimed at predicting hot tear formation and stress-strain behavior in metallic alloys during solidification is applied to the semicontinuous direct chill casting of aluminum alloy round billets. This granular model c ...
Springer2013The effect of pressure gradient on the collapse of cavitation bubbles in normal and reduced gravity
When water flows through hydraulic turbomachines, the local pressure can become low enough to vaporize the water and create vapor cavities. This phenomenon is called cavitation. When the cavities collapse, shock waves and liquid jets traveling through the ...
EPFL2013Thermo-chemical production of F-T fuels from lignocellulosic biomass: Heat integration of gasification
François Maréchal, Guillaume Boissonnet, Emanuela Peduzzi
This study focuses on the process integration of gasification in the thermo-chemical conversion of lignocellulosic biomass into liquid fuels thorough gasification and Fischer-Tropsch (F-T) synthesis (biomass to liquids, BtL). Two main gasification technolo ...
2013Process Integration of Lignocellulosic Biomass Pre-treatment in the Thermo-Chemical Production of F-T Fuels. Centralised Versus Decentralised Scenarios
François Maréchal, Guillaume Boissonnet, Emanuela Peduzzi
The purpose of this study is to evaluate, in terms of process integration, the centralised and decentralised pre-treatment of lignocellulosic biomass for its thermo-chemical conversion into liquid fuels through gasification and Fischer-Tropsch (F-T) synthe ...
2013PyroMEMS: Improved Fabrication Methods and Ignition Reliability
Generating large force/displacement actuators at the millimeter and sub-millimeter scales remains an important challenge for microsystems engineers. One promising solution is to integrate high-energy density solid propellant fuels in microsystems (pyroMEMS ...
EPFL2012Entrained liquid fraction prediction in adiabatic and evaporating annular two-phase flow
John Richard Thome, Andrea Cioncolini
A new method to predict the entrained liquid fraction in annular two-phase flow is presented. The underlying experimental database contains 2460 data points collected from 38 different literature studies for 8 different gas-liquid or vapor-liquid combinati ...
2012Ignition and Combustion Behavior in Solid Propellant Microsystems Using Joule-Effect Igniters
Nico de Rooij, Danick Briand, Volker Gass, David de Koninck
A study of solid propellant ignition and combustion of potassium dinitrobenzofuroxanate in Joule-heating pyrotechnical microelectromechanical systems igniters is carried out using a high-speed framing camera. The effect of igniter geometry, propellant form ...
2011Phase-field simulation of micropores constrained by the dendritic network during solidification
A phase-field model has been developed to describe the morphology of pores constrained by a dendritic solid network, and are forced to adopt complex non-spherical shapes. The distribution of the solid, liquid and gas phases was calculated with a multiphase ...
Elsevier2011