System and method for simulating fluid flow

A system for determining interference effects on a fluid caused by a simulated geometric terrain profile and experienced by a simulated vehicle in real-time, comprising:

• a memory configured for receiving-a freestream direction and a freestream speed for a simulated freestream of the fluid;
• a terrain configuration module configured for receiving a two-dimensional simulated geometric terrain profile having a horizontal x-axis and a vertical z-axis, and packing a number of geometric cylinders representing doublets in the vertical z-axis along the horizontal x-axis under the two-dimensional simulated geometric terrain profile;
• an analysis module configured for determining an analysis point having an analysis x and analysis z position for a simulated vehicle relative to a reference position of the simulated vehicle using a defined x offset and z offset reference and an angular pitch attitude of the simulated vehicle along the freestream direction relative to the reference position, and determining a horizontal and a vertical flowfield fluid perturbation ratio at the analysis point along the x-axis and the z-axis;
• a gain module configured for determining flow behavior conditions around the simulated vehicle and a positioning of the simulated vehicle relative to the simulated geometric terrain profile based on the flowfield fluid perturbation ratios, and determining one or more flowfield fluid perturbation ratio gains based on the positioning of the simulated vehicle relative to the simulated geometric terrain profile;
• and
• a fluid vector module configured for determining a total planar fluid velocity comprising the freestream speed and the horizontal flowfield fluid perturbation ratio and gain along the freestream direction and a total vertical fluid velocity comprising the vertical flowfield fluid perturbation ratio and gain along the z-axis, and transforming the planar fluid velocity into two dimensions.