Ground semi-physical simulation experiment study of one-dimensional drag-free control

One Dimensional Internal Ballistics Simulation of Solid Rocket Motor

An internal ballistics model has been developed for performance prediction of a solid propellant rocket motor. In this model a 1-D unsteady Euler equation with source terms is considered. The flow is assumed as a non-reacting mixture of perfect gases with space and time varying thermo physical properties. The governing equations in the combustion chamber are solved numerically by using the Steg...

One dimensional simulation of flushing sediment through reservoirs

Control of sedimentation in reservoirs of dams is considered to be one of the most important issues in exploitation of dams and increasing their useful life. Reservoirs act as traps for sediments and prevent transport of sediments to the river. The deposited sediments will decrease the capacity of the reservoirs so that they cannot be in use any more. Various methods are discussed in this study...

Development of a Drag-Free Control System

A Drag-Free Control (DFC) system is a necessity for all future space-borne gravitational wave missions such as LISA, and similar technology is needed on other missions where high positional accuracy is required. The DFC system is needed to control the motion of the spacecraft that are required for the construction of a giant Michelson interferometer, which can be used to detect gravitational wa...

Mesoscopic fluctuations of Coulomb drag between quasiballistic one-dimensional wires

Numerical Simulation of Drag Reduction in Formula One Cars

Today, it is very usual to see numerous cars, from commercial cars to sports cars fitted with different types of spoilers on them. The exterior fashioning and aerodynamically well-organized design for reduction of engine load which reflects in the reduction of fuel consumption and producing the down force for the stability are the two essential factors for an effective operation in the modest w...