“…ETG-ai simulations did not generate any zonal flows whereas strong zonal flows were produced in ETG-ki simulations leading to a significant reduction in the electron thermal transport. Multi-scale interactions involving MHD modes (tearing modes) and ITG modes was the subject of gyrofluid simulations in [43] and gyro-kinetic simulations in [44]. The presence of a magnetic island beyond a critical width was seen to excite a new short wave-length micro-instability (MITG) with a substantially lower stability threshold than the conventional ITG instability [43].…”
Section: Mhd Studies In Field Reverse Configurationsmentioning
“…ETG-ai simulations did not generate any zonal flows whereas strong zonal flows were produced in ETG-ki simulations leading to a significant reduction in the electron thermal transport. Multi-scale interactions involving MHD modes (tearing modes) and ITG modes was the subject of gyrofluid simulations in [43] and gyro-kinetic simulations in [44]. The presence of a magnetic island beyond a critical width was seen to excite a new short wave-length micro-instability (MITG) with a substantially lower stability threshold than the conventional ITG instability [43].…”
Section: Mhd Studies In Field Reverse Configurationsmentioning
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