the steady flow process involving a reduction in pressure without enthalpy change such as flow through a valve
(Forall (?Self) (<=> (Steady-Flow-Throttling ?Self) (And (Steady-Flow-Expansion ?Self) (Steady-Flow-Adiabatic-Process ?Self) (Process-Cv ?Self ?Cv) (Undergoing Steady-Flow-Throttling ?Cv)))) (Forall (?Self ?Time) (=> (Active ?Time Steady-Flow-Throttling ?Self) (And (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Work-Rate ?Self) ?T))) 0) (Forall (?Cv) (=> (Process-Cv ?Self ?Cv) (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Pe-Rate-Out ?Cv) ?T))) (Lambda (?T) (If (= ?T ?Time) (Value-At (Pe-Rate-In ?Cv) ?T)))))) (Forall (?Cv) (=> (Process-Cv ?Self ?Cv) (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Ke-Rate-Out ?Cv) ?T))) (Lambda (?T) (If (= ?T ?Time) (Value-At (Ke-Rate-In ?Cv) ?T))))))))) (Forall (?Self ?Time) (<=> (Active ?Time Steady-Flow-Throttling ?Self) (And (Steady-Flow-Throttling ?Self) (Active ?Time Steady-Flow-Expansion ?Self) (Active ?Time Steady-Flow-Adiabatic-Process ?Self))))
(Forall (?Self) (<=> (Steady-Flow-Throttling ?Self) (And (Steady-Flow-Expansion ?Self) (Steady-Flow-Adiabatic-Process ?Self) (Process-Cv ?Self ?Cv) (Undergoing Steady-Flow-Throttling ?Cv)))) (Forall (?Self ?Time) (=> (Active ?Time Steady-Flow-Throttling ?Self) (And (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Work-Rate ?Self) ?T))) 0) (Forall (?Cv) (=> (Process-Cv ?Self ?Cv) (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Pe-Rate-Out ?Cv) ?T))) (Lambda (?T) (If (= ?T ?Time) (Value-At (Pe-Rate-In ?Cv) ?T)))))) (Forall (?Cv) (=> (Process-Cv ?Self ?Cv) (= (Lambda (?T) (If (= ?T ?Time) (Value-At (Ke-Rate-Out ?Cv) ?T))) (Lambda (?T) (If (= ?T ?Time) (Value-At (Ke-Rate-In ?Cv) ?T))))))))) (Forall (?Self ?Time) (<=> (Active ?Time Steady-Flow-Throttling ?Self) (And (Steady-Flow-Throttling ?Self) (Active ?Time Steady-Flow-Expansion ?Self) (Active ?Time Steady-Flow-Adiabatic-Process ?Self)))) (Inherited-Facet-Value Slot-Value-Type Nozzle-System Thrtlng-Prcs Steady-Flow-Throttling) (=> (Nozzle-System ?Self) (And (Value-Cardinality ?Self Nzl 1) (Value-Type ?Self Nzl Nozzle) (Value-Cardinality ?Self Nzl 1) (Value-Cardinality ?Self Nzl-Cv 1) (Value-Type ?Self Nzl-Cv 1-1-Control-Volume) (Value-Cardinality ?Self Nzl-Cv 1) (Value-Cardinality ?Self Thrtlng-Prcs 1) (Value-Type ?Self Thrtlng-Prcs Steady-Flow-Throttling) (Value-Cardinality ?Self Thrtlng-Prcs 1) (Cv-Component (Nzl-Cv ?Self) (Nzl ?Self)) (Component-Cv (Nzl ?Self) (Nzl-Cv ?Self)) (Process-Cv (Thrtlng-Prcs ?Self) (Nzl-Cv ?Self)))) (=> (Thrtlng-Prcs $X $Y) (Steady-Flow-Throttling $Y))