Theoretical Justification of Experimental Investigation of Gravity-Capillary Method for Gas-Liquid Mixtures Intake

The process of interaction of an adaptive spatial permeable capillary phase separator with a gas-liquid interface in a vessel in the gravitational field of the Earth was investigated. The existence of a natural comprehensive compression force acting on a capillary phase separator was theoretically justified and experimentally confirmed. This force is compensated by the structure rigidity in classical devices. It was shown that the volume of the capillary phase separator covered by a gas was decreased in a compliant structure under the action of this force in the liquid outflow process. Due to this, it is possible to maintain a total pressure differential for the capillary phase separator at low flow rates of the liquid below a capillary differential defined by the well-known Laplace's formula. This effect allows reducing a remaining portion of a liquid in a vessel and expanding the practical application area of capillary phase separators including intake systems operating under conditions of elevated accelerations and temperatures.