“…Experiments performed at the bulk level confirmed the conclusions of force analysis at the particle level. In fact, powder cohesion varied only for air humidity values higher than a critical value by analysing the results of shear tests (Elbirli et al, 1982;Karde and Ghoroi, 2015;Landi et al, 2011;Salehi et al, 2021;Stevens et al, 2009;Teunou and Fitzpatrick, 1999), torque and energy measurements in rheometers (Groen et al, 2020;Landi et al, 2012;Lu et al, 2017;Marchetti et al, 2022), and flowability indices in rotating drums (Lumay et al, 2016).…”