Applying the Sparse Grid Combination Technique in Linear Gyrokinetics

Beschreibung

The simulation of microturbulences in fusion plasmas using the five-dimensional gyrokinetic equations is a computationally demanding task. The sparse grid combination technique combines several low-resolution solutions of different mesh sizes to obtain an approximation with less effort. A new approach for varying and optimizing the combination coefficients improves the solution of the gyrokinetic problem. The combination technique reduces the computational effort of the gyrokinetic computations.

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Christoph Kowitz

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linear gyrokinetics microturbulences sparse grid combination

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