A novel approach to generate random surface thermal loads in piping

摘要: Abstract There is a need to perform three-dimensional mechanical analyses of pipes, subjected complex thermo-mechanical loadings such as the ones evolving from turbulent fluid mixing in T-junction. A novel approach proposed this paper for fast and reliable generation random thermal loads at pipe surface. The resultant continuous time-dependent temperature fields simulate fluid–wall interface. based on reproducing discrete statistics, experimental readings or computational dynamic simulation's results, interface locations through plane-wave decomposition fluctuations. obtained contain large scale instabilities cold hot spots traveling flow velocities. These low frequency are believed be among major causes fatigue T-junction configurations. case study found literature has been used demonstrate surface loads. generated with statistically equivalent (within first two moments) those CFD simulations results similar characteristics. maintain input data field set parameters generate This feature will great advantage future sensitivity structures.