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per unit           φ  n  Rdφ  p exit  ∫  0                                               27

















                     Average rolling pressure –
                                              =  1  Rφ  n

                                               exit

                                              p ave,





                              width           Rdφ;  p entry                                                   Prof. Ramesh Singh, Notes by Dr.   Singh/ Dr. Colton










                                        φ  n    ∫  α
                                                  )  n
                                                  −φ


                                          1
                                                  α
                                                  R(


                                              −

                                              =
                                               entry


                                              p ave,
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