Theinfluenceofdiffuserparameters,includingtheriserspacing,portnumberinariser,injectionangle,portarrangement,etc.,onthesurfaceinitialdilutionisexperimentallyinvestigated.Therelativedensitydifferencebetweentheeffluentandtheseawaterinthemodelisthesameasthatintheprototype,andtheeffectofthecrosscurrentissimulatedbyaninversemodeltechnique.Basedontheresultanalysis,thearrangementwithmoreportsinariserandlargerriserspacingissuggestedtosaveconstructioncost.TherelationshipbetweentheReynoldsnumberbasedontheportdiameterandvelocity,andthesurfaceinitialdilutionisalsoexplored,andthecriticalReynoldsnumberisproposed.