The transition to turbulence in strongly accelerated pipe flows

This thesis is an experimental, analytical and numerical investigation of pipe flows started impulsively from rest and thereafter accelerated exponentially with time. The broad objectives were to reconcile measured base flow and transition inception data with linear stability predictions, [Abbreviated Abstract. Open document to view full version]A thesis submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, June 1995