HEAT PULSE PROPAGATION - DIFFUSIVE MODELS CHECKED AGAINST FULL TRANSPORT CALCULATIONS
The problem of deducing Xe from heat pulse propagation measurements is addressed. An extended rd diffusive model is described, which takes into account perturbed source and sink terms. Xe is expressed as a function of two observables, the heat pulse velocity v-HP and the radial damping rate alpha: Xe = 4.3 a nu-HP alpha. This expression is checked against full transport simulations and found accurate. Finally it is shown that the thus inferred Xe is a local value, not influenced by the Xe profile outside the measuring region.
Bibliographic Reference: WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK), MENTIONING REPORT JET-P(87)28, 1987
Record Number: 1989126028301 / Last updated on: 1989-01-01
Available languages: en