1.

Which of these conditions satisfy realizability?(a) \(-\rho \overline{u_{i}^{‘} u_{j}^{‘}}\)1(c) \(-\rho \overline{u_{i}^{‘} u_{j}^{‘}}\)>0(d) \(-\rho \overline{u_{i}^{‘} u_{j}^{‘}}\)

Answer»

Right answer is (d) \(-\rho \overline{u_{i}^{‘} u_{J}^{‘}}\)<0

Easiest explanation: ACCORDING to the realizability CONDITIONS, the PROPERTIES which are physically non-negative must be numerically non-negative too. So,\(-\rho \overline{u_{i}^{‘} u_{j}^{‘}}\)>0. Therefore, \(-\rho \overline{u_{i}^{‘} u_{j}^{‘}}\) should be less than zero.


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