The literature review indicates that while the. effect of orifice geometry on the injector flow and spray processes has been examined to. some extent, its influence on engine combustion and emissions is not well established (Som, 2010b, 2011). To the best of our knowledge, the influence of nozzle geometry on spray and.
Vertigo Symptoms and Signs. Vertigo is a feeling that you are dizzily turning around or that your surroundings are dizzily turning about you. Vertigo is usually due to a problem with the inner ear but can also be caused by vision problems and other conditions.Vertigo is medically distinct from dizziness, lightheadedness, and unsteadiness in that vertigo involves the sensation of movement.ertigo is a feeling that you are dizzily turning around or that your surroundings are dizzily turning about you. Vertigo is usually due to a problem with the inner ear but can also be caused by vision problems and other conditions.
Benign positional vertigo. Benign positional vertigo is the most common type of vertigo. Vertigo is the feeling that you are spinning or that everything is spinning around you. It may occur when you move your head in a certain position. Benign positional vertigo is also called benign paroxysmal positional vertigo (BPPV). It is caused by a problem in the inner ear. The inner ear has fluid-filled tubes called semicircular canals. When you move, the fluid moves inside these tubes. The canals are very sensitive to any movement of the fluid.