Hybrid Central Solvers: a set of OpenFOAM programs for comptational analysis of compressible gas and fluid flow, include multicomponent and multiphase formulations

This set of programs allows to simulate deep subsonic (M < 0.1), transonic and supersonic (1 < M < 5) flow with viscsosity, turbulence, mesh motion, conjugate heat transfer, presence of several componets (fraction) or phases, arbitray equation of state.

The original idea employed in these programs consists in combination of approximate Riemann solver developed by Kurganov and Tadmore for high speed flows and projection- like pressure implicit algorithm (PIMPLE) that has been used successfully for many years in OpenFOAM.

Such an approach has allowed to resolve some borderline cases, where many methods fail to work. Additionaly, the incorporation of Kurganov Riemann solvers into PIMPLE loop have increased robustness of programs for practical cases with complex 3D geometry.

Up to now, the solvers have been used in more than 50 scientific studies (several defended PhD), such as:

• Analysis of Radiation Discretization for Modelling a Spark Gap for Surge Currents
• Computational analysis and mitigation of micro-pressure waves in high-speed train tunnels
• Numerical analysis of cavitation about marine propellers using a compressible multiphase VOF fractional step method
• Numerical investigation of the auto-ignition of transient hydrogen injection in supersonic airflow
• Three-dimensional Effects in Dual-pulse Laser Energy Deposition:
• URANS Analysis of a Launch Vehicle Aero-Acoustic Environment
• Analysis of the oscillations induced by a supersonic jet applied to produce nanofibers
• Numerical and experimental analysis of detonation induced by shock wave focusing
• The diffraction and re-initiation behavior of detonation wave in premixed H2-O2-Ar mixture
• Calculations of the Density Profile for Pulse Injection of Working Gas into the PF Chamber and Experimental Results
• And other studies.