Abstract
We consider a turbulent channel flow, where a scalar point source varying its intensity with a sinusoid in time releases a substance that can be modeled as a passive scalar. Being the scalar source location known, our objective is to estimate the source intensity with time based on a sensor signal at different downstream distances from the source by applying an adjoint field approach. It is shown that the present approach reproduces the original coherent sinusoidal wave of the scalar source fairly well from a chaotic scalar signal corrected at a downstream location. Based on these results, we also discuss the effects of a pulsating frequency of the source and the sourcesensor distance on the fundamental limit in the present inverse problem.
| Original language | English |
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| Pages (from-to) | 123-126 |
| Number of pages | 4 |
| Journal | Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer |
| Volume | 0 |
| Publication status | Published - 2015 |
| Event | 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 - Sarajevo, Bosnia and Herzegovina Duration: 15 Sept 2015 → 18 Sept 2015 |