Predicting and mitigating acoustic levels become critical because of the harsh environment during space vehicle lift-off. This paper aimed to study aero-acoustic a rocket The sound propagation within launch event was studied using dedicated computational fluid dynamics (CFD). resolution all phenomena that occur is unfeasible. We discuss turbulence simplification propose feasible simulation thro...

A high-precision variable-thrust control method based on real-time measurement of pintle displacement and closed-loop feedback is proposed to solve the technical problems deep throttling regulation liquid rocket engines (LRE). By optimizing system structure parameters, with high precision a fast response under wide range variable thrust can be realized, thus large-range, fast-response, chamber ...