2004•Acta Physica SinicaOpen access
Limitation for the energy spectrum analysis for the understanding of the turbulent cascade
Meng Qingguo, Cai Qing-Dong, Li Cun-Biao, (1)北京大学湍流与复杂系统国家重点实验室，北京 100871; (2)国家自然科学基金委员会数理科学部，北京 100085
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Abstract
Simple examples were applied to show that the “cascade" and “inverse cascade” presented in an energy spectrum even without real physical cascade processes. T he misleading comprehension should appear if energy spectrum was considered as a un ique evidence of the energy cascade in turbulence.