We study a reduced electrostatic fluid model for the tokamak scrape-off layer. which incorporates temperature gradient and vorticity gradient as two free energy fields. Two scenarios of field coupling are addressed: (1) sheath condition; (2) vortex wave coupling. For the sheath condition induced field coupling. https://countryscenesaddleryandpetsuppliers.shop/product-category/hand-painted-headstall-and-breastplate/