An investigation into unsteady flow patterns in the cavity receiver of the Compact Linear Fresnel Reflector was performed using computational methods. Results indicate that periodic or even chaotic flow patterns may occur for some conditions and cavity designs. However, the results indicate that unsteadiness in the flow structure does not result in significant variation in the over heat loss ra...

Two cases of frontal, space occupying tumour without papilloedema are reported. Both presented with frequent, stereotyped attacks of visual disturbance with orbital headache, neck pain and unsteadiness of gait. Intermittent occipital lobe ischaemia, related to compression of the posterior cerebral artery against the tentorium by distorted, herniating brain, seems a probable explanation.

Introduction: Bilateral vestibular dysfunction (BVD) is an uncommon finding in vestibular assessment, and the combination of BVD and orthopedic problems represents a rare and challenging case for treatment.   Case Report: The patient had several previous back surgeries and received gentamycin after surgery. After 6 months, she experienced continuous dizziness, unsteadiness and oscillopsia. ...

Unsteady flow is highly related to loss and aerodynamic performance degradation in the axial compressor. In this paper, dynamic mode decomposition method was used investigate in-depth structures evolutionary mechanisms of internal field. Four main were observed through field decoupling: oscillation tip leakage vortex (TLV) region, circumferential migration leakage-induced (LIV), rear part (RLV)...

In this paper, the problem of unsteady mixed convection boundary layer flow of a viscous incompressible fluid near the stagnation-point on a vertical permeable plate with both cases of prescribed wall temperature and prescribed wall heat flux is investigated numerically. Here, both assisting and opposing buoyancy forces are considered and studied. The non-linear coupled partial differential equ...