f{luid}-b{ulk} pcdc e{lement} c{onstitutive}-m{odel} hydr{aulic}-p{orous}-p{roppant}-m{edium} prop{erty} f{luid}-b{ulk} **描述:**流体体积模量。省缺值:0.0 。可选 值: f(float,模量值)