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22.15 Solution Strategies for the Discrete Phase

Solution of the discrete phase implies integration in time of the force balance on the particle (Equation  22.2-1) to yield the particle trajectory. As the particle is moved along its trajectory, heat and mass transfer between the particle and the continuous phase are also computed via the heat/mass transfer laws (Section  22.9). The accuracy of the discrete phase calculation thus depends on the time accuracy of the integration and upon the appropriate coupling between the discrete and continuous phases when required. Numerical controls are described in Section  22.11.7. Coupling and performing trajectory calculations are described in Section  22.15.2. Sections  22.15.3 and 22.11.9 provide information about resetting interphase exchange terms and using the parallel solver for a discrete phase calculation.




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