OTTAWA — The Ottawa Senators’ home arena was a bit too quiet, as it often is for regular-season games not involving the Toronto Maple Leafs or the Montreal Canadiens. The opponents last Tuesday night were the Detroit Red Wings, and most of the phlegmatic Senators crowd at Canadian Tire Centre sat and watched in hushed contemplation.

But not in Section 319 in the upper deck, where red-and-black-clad fans stood, beating on drums and raising a din all night. “Oh, when the Sens! Go marching in!” they sang again and again, between chants of “This is our house!” When Ottawa scored, the fans, mostly young men, jumped around with such reckless joy that they almost tumbled from their rows.

The raucous proceedings, taking place under the watchful gaze of club employees, are believed to be the first team-supported attempt to foster the atmosphere of an avid soccer crowd in the N.H.L. If it catches on, the Senators’ arena will feel less like a library.