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流体力学:开放获取

体积 9, 问题 9 (2022)

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Logical Focus on Lift Execution of a Bat-Propelled Foldable Fluttering Wing

John Kerry* and Sane Wab

The mechanical wing is composed of a 2-DOF scapula and a 1-DOF (flexion/expansion) elbow and wrist. The energy input and streamlining force produced by the flapping wing may be easily calculated. Numerous analysts investigated the impact variables of simplified FWAV characteristics. The impact of wing shape, perspective proportion, and approach on exhibition. Mazaheri and Ebrahimi conducted an air stream test to determine the link between lift and push for approaches and fluttering frequency at four distinct flying speeds.

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Hydraulic Reservoir Stimulation: A Mini Review

Isabel Tork*

Improved Geothermal Frameworks (EGS) can help economic development by providing an efficient power energy supply, despite the fact that they frequently require the pressure driven excitement of the repository to increase liquid flow and energy effectiveness due to the low stone penetrability at the required profundities. The injection of liquids for water-driven sensation suggests a few hazards, such as induced seismicity. In this paper, we use mathematical simulations to quantify the seismic risk in terms of blame reactivation, quake size, and burst proliferation. The computer model incorporates fully coupled thermo-hydromechanical conditions and reproduces problems as frictional contacts described by rate-and-state rubbing regulations. As a continuation of our previous work, we apply our technique to the Basel EGS project, utilising identical boundaries and criteria. Our findings reveal that porousness excitation isn't just related to induce seismicity, but it can also cause a heated descent of the repository over time and during energy generation. The proposed approach may be useful in re-enacting triggered seismic tremors and the prolonged activity of EGS.

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