Solvation forces in near-critical fluids. Ising model results

Recent developments in the statistical theory of simple fluids in a film ge ometry near bulk criticality is reviewed. We summarize results obtained by exact or approximate, but very accurate methods within Ising model. Particu lar attention is paid to the properties of the measurable solvation force a nd its relation to the structure of the confined system, in the Ising model given by magnetization profiles. Relevance of the reviewed results for var ious physical systems is briefly discussed.