Numerical Simulation of Quenching Process in Coal Gasification

This Master’s Thesis compares two computational fluid dynamics solvers: the commercial solver ANSYS CFX and the open source code OpenFOAM. Simple benchmark cases with compressible and incompressible flows are tested and compared. Thereafter the more complex process of quenching in coal gasification is simulated. This thesis work describes the simulation of a part of the coal gasification process, namely the water gas shift reaction or the quenching process. The quenching process involves simulation of a multicomponent, multiphase reactive flow system. This thesis uses the EulerianLagrangian approach to simulate the quenching process. It turns out that ANSYS CFX convinces in the first place with its robustness, especially when dealing with steady state problem configurations. However OpenFOAM shows a much better performance when dealing with strongly transient processes.