Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
ATC Issue All Types; Deviation - Speed All Types; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Executed Go Around / Missed Approach
Environment - Non Weather Related; Procedure
During this flight; we encountered wake turbulence near the flare portion of landing twice. The first resulted in a uncommanded right roll of approximately 30 degrees followed by a left roll of 15 degrees. A go around was executed. The second was a uncommanded 20 degree left roll; with a prompt recovery and landing. No further wake was encountered. A go-around could also have been executed here; I planned to if the turbulence did not subside after the first correction. Fuel remaining was a factor in this decision; as it would put us below minimum (but above emergency) fuel for return. In both cases; a momentary (1 sec) stick shaker occurred as a result of being at Ref in a high bank angle.
Reporter stated he hopes mitigating changes might be made to avoid this issue in the future.
Air Carrier Captain reported executing a go-around after encountering wake turbulence on short final at DEN.