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What Do You Understand By Stability Criterion For The Solution Of Transient Problems? |
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Answer» When SOLVING transient problems using finite-difference methods, it is possible that the solution undergoes numerically induced oscillations and becomes unstable i.e. the TEMPERATURE values diverge. The stability CRITERION is a restriction on the values of Dt and Dx which ENSURES that the solution remains STABLE and converges. The criterion is usually expressed as a function of Fourier’s number. When solving transient problems using finite-difference methods, it is possible that the solution undergoes numerically induced oscillations and becomes unstable i.e. the temperature values diverge. The stability criterion is a restriction on the values of Dt and Dx which ensures that the solution remains stable and converges. The criterion is usually expressed as a function of Fourier’s number. |
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