A vortex generating device provided to face a heat exchanger of a refrigeration cycle apparatus , the vortex generating device comprising: support bodies ; and vane bodies provided on the support bodies , wherein between the support bodies and the vane bodies , respective first spaces are provided to allow air to flow therethrough, wherein the vane bodies each include one end (P1) located on one side in a flow direction of air, an other end (P2) located on an other side in the flow direction of air, and a surface (S1, S2) extending along the flow direction of air and from the one end (P1) to the other end (P2), wherein the vane bodies each include a first vane which is formed as a plate-shaped element, and a second vane which is formed as a plate-shaped element and paired with the first vane , the vortex generating device being characterized in that the first vane includes a first end (E1) associated with the one end (P1), a second end (E2) associated with the other end (P2), and a first surface (S1) associated with the surface extending along the flow direction of air, and wherein the second vane includes a fourth end (E4) associated with the one end (P1), a fifth end (E5) associated with the other end (P2), and a second surface (S2) associated with the surface extending along the flow direction of air, and wherein the first surface (S1) and the second surface (S2) are formed such that a first direction (Dr1) and a second direction (Dr2) intersect each other, where the first direction (Dr1) is a direction from the first end (E1) to the second end (E2) along the first surface (S1), and the second direction (Dr2) is a direction from the fourth end (E4) to the fifth end (E5) along the second surface (S2). support bodies ; and vane bodies provided on the support bodies , wherein between the support bodies and the vane bodies , respective first spaces are provided to allow air to flow therethrough, wherein the vane bodies each include one end (P1) located on one side in a flow direction of air, an other end (P2) located on an other side in the flow direction of air, and a surface (S1, S2) extending along the flow direction of air and from the one end (P1) to the other end (P2), wherein the vane bodies each include a first vane which is formed as a plate-shaped element, and a second vane which is formed as a plate-shaped element and paired with the first vane , the vortex generating device being characterized in that the first vane includes a first end (E1) associated with the one end (P1), a second end (E2) associated with the other end (P2), and a first surface (S1) associated with the surface extending along the flow direction of air, and wherein the second vane includes a fourth end (E4) associated with the one end (P1), a fifth end (E5) associated with the other end (P2), and a second surface (S2) associated with the surface extending along the flow direction of air, and wherein the first surface (S1) and the second surface (S2) are formed such that a first direction (Dr1) and a second direction (Dr2) intersect each other, where the first direction (Dr1) is a direction from the first end (E1) to the second end (E2) along the first surface (S1), and the second direction (Dr2) is a direction from the fourth end (E4) to the fifth end (E5) along the second surface (S2). <EOS>